Combination lock



June 12, 1928. 1,673,441 H- CHARLEMAGNE COMBINATION LOCK Original ile M rch 18, 1925 .3756 MNEYS.

INVENTOR. 59

Patented June 12, 1928.

UNITED STATES HENRY CHARLEMAGNE, OF BROOKLYN, NEW YORK.

COMBINATION LOCK.

Application filed March 18, 1925, Serial No. 16,328. Renewed April 30, .1928.

This invention relates to improvements in looks, particularly in combination locks, and it is the principal object of the invention to provide a combination lock, the tumblers of'which are normally held in their latchengaging, locking position by means offingers adapted to be controlled from thecom bination knobs and dials, and which are disengaged from their l'atclrengaging position by a special key. p

I Another object of the invention is the provision of a combination lock of simple and inexpensive construction, yet efliciently and positively. operating.

A further object of the invention is the provision of a lock of the combination type including a removable. key of peculiar configuration, and a latch which is limited in its movements within the lock.

A still further object of the invention is the provision ofa combination lock allowing. when attached to a door or the like. lateral access to the key for removal and insertion thereof.

These and other objects and advantages of my invention will become more fully apparent as the description thereof proceeds, and will then be specifically defined in the appended claims.

material part of this disclosure:

Fig. 1 is a front elevation of a lock constructed according to my invention.

Fig. 2 is a rear elevation thereof after the removal of the housing rear plate looking in the direction ofthe arrows 22 of Fig. 3. Fig. 3 is a cross-section on line of Fig. 2.

Fig. 4 is a longitudinal section on line 4 4 of Fig. 2.

Fig. 5 is a fragmentaryrea-r elevation of a modified form of the lock.

Fig. 6 is a crosssection on Fig. 5. I

Fig. 7 is a detail side elevation of the lock key.

In this housing 10 three substantially vertical chambers 12, 13 and 14 are formed in which the tumblers 15, 16 and 17 are vertically displaceable within certain limits defined by the rearwardly extending horizontal flanges 18, 19 and 20 respectively.

The casing has also an upper longitudinal slot 21, and a lower longitudinal slot having a depression 22. \Vithin the upper slot 21 is displaceably located a key 23 having .a

line 6-6 of In the accompanying drawing, forming a or wards 25. 26 and 27 respectively adapted to engage under the flanges 18, 19. 20 of the tumblers to 'hold the same in their upper elevated positions with theirlower endsjdisengaged from the latch 28 slidably arranged within the lower slot and provided with-suitable depressions 29, 30, 31 adapted to be engaged by the lower ends of'the tumblers, 15, 16 and 17, "as shown in Fig. 2.

The combination characters are on the flanges of the knobs 32, 33 and 34 on the front plate of the casing, while the said plate carries appropriate marks 35 in the well known manner representing the stopping point when reaching the combination numbers. p

The'knobs are integral with stub shafts which carry within the casing star wheels 35, 36 and 37 respectively each of which has three short arms or fingers 38 and onelonger or operating arm 39 whichis adapted upon the proper setting of the combination to engage and bear against the lower rear end of one of the levers 40, 41 or 42 respectively, pivoted intermediate its ends as i at 43, 44, 45 in the casing, and having upper gripping fingers or members 46, 47-, 48 adapted to grip overl the upper face ofthe flanges 20 19' and'18 respectively.

Springs 49,, 50 nd 51 are secured at their lower ends to blocks 52. 53 and 54 on the lock frame or body and normally press the levers 40, 41and 42 towards one direction in which the members 46, 47 and 48 engage or grip over the flanges 20, 19 and 1.8.

finger piece 24 and three locking members The latch 28 has afpin 55 attached to its pression 22 and to limit the movements of the latch or lockingbolt 28. v

The device operates as follows:

Assuming thelock is in its unlocked position, and the flanges 18, 19 and'20 of the tumblers rest upon the wards 25, 26 and 27 of key 23 within the slot 21. is now laterally removed, the tumblers wil fall down and their lower ends will engage the depressions 29 30, and 31 of the latch 28 which in this position is pushed inwardly until its pin 55 engagesthe rear end of depression 22, and thelock will be effectively locked by the proper manipulation of the combination to bring the gripping elements of the locking fingers 40, 41 and 42 into engagement over the flanges 20, 19 and 18. 1

If this ke lower edge Or faceadapted to slide in de- If a is now desired to open thelock, the combination is properly operated to disengage the gripping members from the tumbler flanges, successively, and when the key. is again inserted into slot 21, and thereafter.

bodily raised, it will raise the tumblers out of engagement with the depressions of the latch bolt andrest with their flanges again upon the wards of the key. 7

In? the modified form of my invention illustrated in Figsifi and 6, the lock is provided with an auxiliary knob 57 on a stub shaft 58 having its rear end located in the chamber 59 of the lock casing and which carries thereina pinion 60 in mesh witha rack bar 61 upon the longitudinal displacement. of, stud shaft 58, said rack bar 61 being guided in suitable guides 62, and 63 respectively andronnected, at its upper end to a horizontally arranged arm 64: adapted to hear from below against the lower face of a key bar 65 carryingtlie tumblers 65, (i6, 67

and GS having upper flanges'69, 70, 71 and 72 respectively adapted for engagement by the gripping members of the locking fingers as in the preferred 7 form.

It'will be clear that a lowering of the key bar 55 bv the proper manipulation of the I a by the proper manipulation of the knob .51 after (the disengagement of the gripping knob 57, and the rack bar thereby, will bring the tumblers into engagement with the depressions in the latch bolt, as in the prefe'rredform, while an elevation of the rack members front the tumblerflanges, upon the proper setting of the combination will I lift the tumblers out of engagement'with the 7' depressions of thelock bolt, a'ndwill allow an opening of the locked door.

Changes such, as fall within the scope ,of the appendedclaims may be made in the constructionfofthe details of my improvedlock wi thout departure from the spirit of my invention. f q

vHaving thus described my invention what I claim aslnew and desireto protect by Letters latent ofth'e ,United States is as follows i g I 1. A combination lock comprising a reclessed locking bolt, al plurality of tumblers trolled means for locking said tumblers in their engaged position with said locking bolt, allowing a disengagement therefrom upon the proper manipulation of the combination, and a key'for operating said tumblers to raise and lower the sameafter their disengagement by said spring controlled locking means, an auxiliary knob, a spindle therefor ending in a/chamber of the lock casing, a gear on said spindle within said chamber, a rack in mesh with said gear adapted to be raised and lowered by the operation of said knob,;and guides for said rack, said rack adapted to engage said key to raise and lower said tumblers.

2, In a combination lock otthe class described, a recessed locking bolt, a plurality of tumblers adapted to engage the recesses adapted tobe operated by a knob for operat-.

ing said rack bar. y

3. Thecomblnation in a combination lock having special key supporting tiunblers in their position disengaged from the latch, allowing a falling of said tumblers into the latch'recesses to lock the lock, of arecessed sliding latch, means for limiting the movements of saidlatchin either direction, a pin rality of tumblers having upper flanges,

adapted to engage with their, lower ends into the recesses of said latchfa plurality of locking fingers pivoted intermediate their ends, gripping members on said fingers adapted to engage over the flanges of said 7 tumblers, means for normally pressing saidj members into engagement with said fingers,

and combination controlled means for disengaging said members from said flanges.

In testimony whereof I have affixed my signature.

HENRY I GHARLEMAGNE 

